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Created by: nbk at: 2/11/2010 9:47 PM (2 Replies)

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2/11/2010 9:47 PM	Rate (0)
nbk Posts: 197 Rating: (3)	Dear experts, If an event has to take place at a specific time everyday,we may use OB10. But what if the same event has to go off a little while later (say 1min or 1hr later) without enagaging any timer? Can this be done using same OB10 or another time-of-the day interrupt (say OB11) has to be called and programmed for turning that event off? Again,no timers to be engaged. Thanks and regards
nbk Posts: 197 Rating: (3)
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2/11/2010 10:58 PM	Rate (1)
fritz Diamond Expert Joined: 10/7/2005 Last visit: 6/5/2023 Posts: 2966 Rating: (1025)	nbk If an event has to take place at a specific time everyday,we may use OB10. But what if the same event has to go off a little while later (say 1min or 1hr later) without enagaging any timer? Can this be done? Hello nbk Not too sure why you must have a solution that does NOT involve the use of Timers, but OB20-23 (Time Delay Interrupts) could be used for this in combination with SFC32, 33 and 34 (Start, Cancel and Query Time Delay Interrupts). I neverhadthe need to use these though and can't give you any additional info, the inbuilt help for the OB's and SFC's ishowever pretty comprehensive. I hope this helps
	Last edited by: fritz at: 2/12/2010 4:06 AM fixed typo and added OB/SFC names to it. Cheers fritz The advice and opinion given in this thread is that of the author and does not necessarily reflect the views of I S Systems Pty Limited. To find out how I S Systems can help you with your automation needs please visit www.issystems.com.au.
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2/11/2010 11:06 PM	Rate (0)
Sydney Gold Member Joined: 1/4/2008 Last visit: 3/8/2023 Posts: 703 Rating: (96)	Hello, if you don't really need interrupt, you canuse the SFC 1 "READ_CLK" for reading the system time and compare with the desired values. Regards Sydney
	Last edited by: Sydney at: 2/11/2010 11:12 PM
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